( * )If sin a + cosec a = 2, then sin^n a + cosec^n a =
( * )
If sin a + cosec a = 2, then sin^n a + cosec^n a =
laxman , 11 Years ago
Grade 11
Trigonometry> ( * ) If sin a + cosec a = 2, then sin^n ...
1 Answers
Yash Baheti
Hi,
Just solve the first expression. If you simplify it you will get [SINa-1]^2 = 0
i.e. SIN a = 1.
Now put this value in the second expression.
You will get 2 as answer.
( Dont forget to use : COSEC x= 1/SINx )
Just solve the first expression. If you simplify it you will get [SINa-1]^2 = 0
i.e. SIN a = 1.
Now put this value in the second expression.
You will get 2 as answer.
( Dont forget to use : COSEC x= 1/SINx )
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